Custom application development is meant for designing a software that has been designed and programmed for a specific function. While all software developed using Custom application development is technically custom, the difference is that packaged applications were designed with a general set of features to be used by a broad range of users. Custom application development is capable of producing practically any feature you may desire for your site. Time and money are virtually the only limiting factors. Quality planning and app design is the key to successful Custom application development .